DES ECB 模式 JAVA PHP C# 实现 加密 解密 兼容

版本一：

JAVA：

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import sun.misc.BASE64Decoder;
import sun.misc.BASE64Encoder;

import javax.crypto.*;
import javax.crypto.spec.DESKeySpec;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;
import java.security.spec.InvalidKeySpecException;

/**
 * 该加密工具兼容PHP
 */
public class DesEcbCompatiblePhpUtil {

    private static final Logger LOGGER = LoggerFactory.getLogger(DesEcbCompatiblePhpUtil.class);

    /**
     * 密钥算法
     */
    private static final String ALGORITHM = "DES";
    /**
     * 加解密算法/工作模式/填充方式
     */
    private static final String ALGORITHM_STR = "DES/ECB/NoPadding";

    private static final String CHARSET = "UTF-8";

    /**
     * 填充内容
     */
    private static final String PAD_STR = "\0";

    public static void main(String[] args) throws Exception {
        String clearText = "123";

        String key = "123";
        System.out.println("明文：" + clearText + "\n密钥：" + key);
        String encryptText = encrypt(clearText, key);
        System.out.println("加密后：" + encryptText);
        String decryptText = decrypt(encryptText, key);
        System.out.println("解密后："+decryptText);

        System.out.println(decryptText.trim().equals("123456"));
    }

    public static String encrypt(String souce, String key) {
        try {
            return encryptByDes(pkcs5Pad(souce), pkcs5Pad(key));
        } catch (Exception e) {
            LOGGER.error("加密数据: {}异常,原因：{},{}", souce, e.getMessage(), e);
        }

        return "";
    }

    public static String decrypt(final String souce, final String key) {
        try {
            return decryptByDes(souce, pkcs5Pad(key)).trim();
        } catch (Exception e) {
            LOGGER.error("解密数据: {}异常,原因：{},{}", souce, e.getMessage(), e);
        }

        return "";
    }

    private static String encryptByDes(final String souce, final String key) throws InvalidKeyException,
            NoSuchAlgorithmException, InvalidKeySpecException, NoSuchPaddingException,
            IllegalBlockSizeException, BadPaddingException, UnsupportedEncodingException {
        // DES算法要求有一个可信任的随机数源
        SecureRandom sr = new SecureRandom();
        // 从原始密匙数据创建DESKeySpec对象
        DESKeySpec dks = new DESKeySpec(key.getBytes(CHARSET));
        // 创建一个密匙工厂，然后用它把DESKeySpec转换成 一个SecretKey对象
        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance(ALGORITHM);
        SecretKey key1 = keyFactory.generateSecret(dks);
        // Cipher对象实际完成加密操作
        Cipher cipher = Cipher.getInstance(ALGORITHM_STR);
        // 用密匙初始化Cipher对象
        cipher.init(Cipher.ENCRYPT_MODE, key1, sr);
        // 现在，获取数据并加密
        byte encryptedData[] = cipher.doFinal(souce.getBytes(CHARSET));
        // 通过BASE64位编码成字符创形式
        String base64Str = new BASE64Encoder().encode(encryptedData);

        return base64Str;
    }

    private static String decryptByDes(final String souce, final String key) throws InvalidKeyException,
            NoSuchAlgorithmException, InvalidKeySpecException, NoSuchPaddingException, IOException,
            IllegalBlockSizeException, BadPaddingException {
        // DES算法要求有一个可信任的随机数源
        SecureRandom sr = new SecureRandom();
        // 从原始密匙数据创建DESKeySpec对象
        DESKeySpec dks = new DESKeySpec(key.getBytes(CHARSET));
        // 创建一个密匙工厂，然后用它把DESKeySpec转换成 一个SecretKey对象
        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance(ALGORITHM);
        SecretKey key1 = keyFactory.generateSecret(dks);
        // Cipher对象实际完成加密操作
        Cipher cipher = Cipher.getInstance(ALGORITHM_STR);
        // 用密匙初始化Cipher对象
        cipher.init(Cipher.DECRYPT_MODE, key1, sr);
        // 将加密报文用BASE64算法转化为字节数组
        byte[] encryptedData = new BASE64Decoder().decodeBuffer(souce);
        // 用DES算法解密报文
        byte decryptedData[] = cipher.doFinal(encryptedData);
        return new String(decryptedData, CHARSET);
    }

    private static String pkcs5Pad(final String souce) {
        //密文和密钥的长度必须是8的倍数
        if (0 == souce.length() % 8) {
            return souce;
        }

        StringBuffer tmp = new StringBuffer(souce);

        while (0 != tmp.length() % 8) {
            tmp.append(PAD_STR);
        }
        return tmp.toString();
    }
}

PHP:

class DesUtil{

    public function ecbEncrypt($key = "", $encrypt) {
        $iv = mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_DES, MCRYPT_MODE_ECB), MCRYPT_RAND);
        $decrypted = mcrypt_encrypt(MCRYPT_DES, $key, $encrypt, MCRYPT_MODE_ECB, $iv);
        $encode = base64_encode($decrypted);
        return $encode;
    }

    public function ecbDecrypt($key = "", $decrypt) {
        $decoded = base64_decode($decrypt);
        $iv = mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_DES, MCRYPT_MODE_ECB), MCRYPT_RAND);
        $decrypted = mcrypt_decrypt(MCRYPT_DES, $key, $decoded, MCRYPT_MODE_ECB, $iv);
        return self::trimEnd($decrypted);
    }

    /*
     * 去掉填充的字符
     */

    private function trimEnd($text) {
        $len = strlen($text);
        $c = $text[$len - 1];

        if (ord($c) == 0) {
            return rtrim($text, $c);
        }

        if (ord($c) < $len) {
            for ($i = $len - ord($c); $i < $len; $i++) {
                if ($text[$i] != $c) {
                    return $text;
                }
            }
            return substr($text, 0, $len - ord($c));
        }
        return $text;
    }
}

版本二：

JAVA:

import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;
import java.security.spec.InvalidKeySpecException;

import javax.crypto.BadPaddingException;
import javax.crypto.Cipher;
import javax.crypto.IllegalBlockSizeException;
import javax.crypto.NoSuchPaddingException;
import javax.crypto.SecretKey;
import javax.crypto.SecretKeyFactory;
import javax.crypto.spec.DESKeySpec;

import sun.misc.BASE64Decoder;
import sun.misc.BASE64Encoder;

public class SecretUtilTools {

    public static String encryptForDES(String souce, String key) throws InvalidKeyException,
            NoSuchAlgorithmException, InvalidKeySpecException, NoSuchPaddingException,
            IllegalBlockSizeException, BadPaddingException, UnsupportedEncodingException {
        // DES算法要求有一个可信任的随机数源
        SecureRandom sr = new SecureRandom();
        // 从原始密匙数据创建DESKeySpec对象
        DESKeySpec dks = new DESKeySpec(key.getBytes("UTF-8"));
        // 创建一个密匙工厂，然后用它把DESKeySpec转换成 一个SecretKey对象
        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
        SecretKey key1 = keyFactory.generateSecret(dks);
        // Cipher对象实际完成加密操作
        Cipher cipher = Cipher.getInstance("DES");
        // 用密匙初始化Cipher对象
        cipher.init(Cipher.ENCRYPT_MODE, key1, sr);
        // 现在，获取数据并加密
        byte encryptedData[] = cipher.doFinal(souce.getBytes("UTF-8"));
        // 通过BASE64位编码成字符创形式
        String base64Str = new BASE64Encoder().encode(encryptedData);

        return base64Str;
    }

    public static String decryptForDES(String souce, String key) throws InvalidKeyException,
            NoSuchAlgorithmException, InvalidKeySpecException, NoSuchPaddingException, IOException,
            IllegalBlockSizeException, BadPaddingException {
        // DES算法要求有一个可信任的随机数源
        SecureRandom sr = new SecureRandom();
        // 从原始密匙数据创建DESKeySpec对象
        DESKeySpec dks = new DESKeySpec(key.getBytes());
        // 创建一个密匙工厂，然后用它把DESKeySpec转换成 一个SecretKey对象
        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
        SecretKey key1 = keyFactory.generateSecret(dks);
        // Cipher对象实际完成加密操作
        Cipher cipher = Cipher.getInstance("DES");
        // 用密匙初始化Cipher对象
        cipher.init(Cipher.DECRYPT_MODE, key1, sr);
        // 将加密报文用BASE64算法转化为字节数组
        byte[] encryptedData = new BASE64Decoder().decodeBuffer(souce);
        // 用DES算法解密报文
        byte decryptedData[] = cipher.doFinal(encryptedData);
        return new String(decryptedData,"UTF-8");
    }

}

PHP:

<?php
class SecretUtilTools
{
    //加密算法
    function encryptForDES($input,$key)
    {
       $size = mcrypt_get_block_size('des','ecb');
       $input = $this->pkcs5_pad($input, $size);
       $td = mcrypt_module_open('des', '', 'ecb', '');
       $iv = @mcrypt_create_iv (mcrypt_enc_get_iv_size($td), MCRYPT_RAND);
       @mcrypt_generic_init($td, $key, $iv);
       $data = mcrypt_generic($td, $input);
       mcrypt_generic_deinit($td);
       mcrypt_module_close($td);
       $data = base64_encode($data);
       return $data;
    }
    //解密算法
    function decryptForDES($encrypted,$key)
    {
       $encrypted = base64_decode($encrypted);
       $td = mcrypt_module_open('des','','ecb','');
       //使用MCRYPT_DES算法,cbc模式
       $iv = @mcrypt_create_iv(mcrypt_enc_get_iv_size($td), MCRYPT_RAND);
       $ks = mcrypt_enc_get_key_size($td);
       @mcrypt_generic_init($td, $key, $iv);
       //初始处理
       $decrypted = mdecrypt_generic($td, $encrypted);
       //解密
       mcrypt_generic_deinit($td);
       //结束
       mcrypt_module_close($td);
       $y=$this->pkcs5_unpad($decrypted);
       return $y;
    }

    function pkcs5_pad ($text, $blocksize)
    {
       $pad = $blocksize - (strlen($text) % $blocksize);
       return $text . str_repeat(chr($pad), $pad);
    } 

    function pkcs5_unpad($text)
    {
       $pad = ord($text{strlen($text)-1});
       if ($pad > strlen($text))
       {
           return false;
       }
       if (strspn($text, chr($pad), strlen($text) - $pad) != $pad)
       {
          return false;
       }
       return substr($text, 0, -1 * $pad);
    }
}

C#:

using System;
using System.IO;
using System.Security.Cryptography;
using System.Text;
using System.Threading;

public class SecretUtilTools
{
    public string encryptForDES(string message, string key)
    {
        using (DESCryptoServiceProvider des = new DESCryptoServiceProvider())
        {
            byte[] inputByteArray = Encoding.UTF8.GetBytes(message);
            des.Key = UTF8Encoding.UTF8.GetBytes(key);
            des.IV = UTF8Encoding.UTF8.GetBytes(key);
            des.Mode = System.Security.Cryptography.CipherMode.ECB;
            System.IO.MemoryStream ms = new System.IO.MemoryStream();
            using (CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(), CryptoStreamMode.Write))
            {
                cs.Write(inputByteArray, , inputByteArray.Length);
                cs.FlushFinalBlock();
                cs.Close();
            }
            string str = Convert.ToBase64String(ms.ToArray());
            ms.Close();
            return str;
        }
    }

    public string decryptForDES(string message, string key)
    {
        byte[] inputByteArray = Convert.FromBase64String(message);
        using (DESCryptoServiceProvider des = new DESCryptoServiceProvider())
        {
            des.Key = UTF8Encoding.UTF8.GetBytes(key);
            des.IV = UTF8Encoding.UTF8.GetBytes(key);
            des.Mode = System.Security.Cryptography.CipherMode.ECB;
            System.IO.MemoryStream ms = new System.IO.MemoryStream();
            using (CryptoStream cs = new CryptoStream(ms, des.CreateDecryptor(), CryptoStreamMode.Write))
            {
                cs.Write(inputByteArray, , inputByteArray.Length);
                cs.FlushFinalBlock();
                cs.Close();
            }
            string str = Encoding.UTF8.GetString(ms.ToArray());
            ms.Close();
            return str;
        }
    }

}